HowToUpgradeToV4.md

Upgrade from versions 1.9.*/2.* to version 4.*

Version 4 has seen a lots of improvements and new features, but also introduce breaking changes if you are trying to use it with an old v1.9 or v2 configuration.

Initialization

Initialization of an AutoNumeric object has changed a bit.
Since AutoNumeric is now an ES6 module, AutoNumeric being the name of the class, and since the jQuery dependency has been dropped, you now longer need to first select the DOM element with jQuery, then call the $(yourElement).autoNumeric('init', { options }) method, but only need to instantiate an AutoNumeric object using new AutoNumeric(yourElement, { options }) (or if you do not already have a reference to the DOM element, use new AutoNumeric('myCSSSeletor', { options })).

<= v2 (Before)	v4 (After)
$('.myInput').autoNumeric('init', { options });	If you want to initialize only one element: new AutoNumeric('.myInput', { options });
	If you want to initialize multiple elements: AutoNumeric.multiple('.myCssClass > input', { options });

Configuration

The old option names have changed and are now deprecated, in favor of the new ones.
To help you switch to the new names, detailed warning messages are displayed in the console if an old option name is detected.

Do note that the option mDec (or its new name decimalPlacesOverride if you used v2) is no longer used.
If you want to specify the number of decimals, instead of relying on the maximum number of decimal places in minimumValue or maximumValue like before, you can now set decimalPlaces to set it globally.
If you wish, you can also specify a different number of decimal places for the formatted value (with decimalPlacesShownOnFocus and decimalPlacesShownOnFocus) or the rawValue (with decimalPlacesRawValue).

<= v2 (Before)	v4 (After)
aSep	digitGroupSeparator
nSep	showOnlyNumbersOnFocus
dGroup	digitalGroupSpacing
aDec	decimalCharacter
altDec	decimalCharacterAlternative
aSign	currencySymbol
pSign	currencySymbolPlacement
pNeg	negativePositiveSignPlacement
aSuffix	suffixText
oLimits	overrideMinMaxLimits
vMax	maximumValue
vMin	minimumValue
mDec	decimalPlacesOverride (Deprecated)
eDec	decimalPlacesShownOnFocus
scaleDecimal	decimalPlacesShownOnBlur
aStor	saveValueToSessionStorage
mRound	roundingMethod
aPad	allowDecimalPadding
nBracket	negativeBracketsTypeOnBlur
wEmpty	emptyInputBehavior
lZero	leadingZero
aForm	formatOnPageLoad
sNumber	selectNumberOnly
anDefault	defaultValueOverride
unSetOnSubmit	unformatOnSubmit
outputType	outputFormat
debug	showWarnings

If you want more detail about the AutoNumeric options, feel free to browse the AutoNumeric options source code which has detailed comment for each one.
Check out the new options on the official website here.

Method calls

Moreover, since we are now using an AutoNumeric object, we can now directly call its methods (and chain them if needed).
In the following table, the anElement variable is created using const anElement = new AutoNumeric('someSelector', { options }).

The methods are now called like so:

<= v2 (Before)	v4 (After)
$(someSelector).autoFormat('1234.56', { options });	AutoNumeric.format(1234.56, { options });
$(someSelector).autoUnFormat('1.234,56 €', { options });	AutoNumeric.unformat('1.234,56 €', { options });
$(someSelector).autoValidate({ options });	AutoNumeric.validate({ options })
$.fn.autoNumeric.defaults	AutoNumeric.getDefaultConfig()
$(someSelector).autoNumeric("destroy");	anElement.remove();
$(someSelector).autoNumeric('get');	anElement.getNumericString();
$(someSelector).autoNumeric('getArray');	anElement.formArrayNumericString();
$(someSelector).autoNumeric('getFormatted');	anElement.getFormatted();
$(someSelector).autoNumeric('getLocalized');	anElement.getLocalized();
$(someSelector).autoNumeric('getNumber');	anElement.getNumber();
$(someSelector).autoNumeric('getString');	anElement.formNumericString();
$.fn.autoNumeric.lang	AutoNumeric.getPredefinedOptions()
$(someSelector).autoNumeric('reSet');	anElement.reformat();
$(someSelector).autoNumeric('set', '12345.67');	anElement.set(12345.67);
$(someSelector).autoNumeric('unSet');	anElement.unformat();
$(someSelector).autoNumeric("update", { options });	anElement.update({ options });
$(someSelector).autoNumeric("wipe");	anElement.wipe();

Check the methods documentation to see how some of those functions signatures changed.

If you encounter any problem upgrading to v4, feel free to contacts us on our Gitter channel or on IRC on Freenode #autoNumeric!